Fan motor



Nov. 3, 1925- 1,560,306

J. s. PATTERSON FAN MOTOR Filed Oct. e, 1925 v g Sheets-Sheet. 1

IN VEN TOR.

J S Pafimson,

Nov. 3 1925. v 1,560,306

J. s. PATTERSON mumlliillilllllllliilimillllll lill I lilllllllllllilllmllllllllllllI r iii 35 2 I 37 I INVENTOR.

, ,JSJhfier-aon,

n B y &

W; ATTORNEY.

Patented Nov. 3, 1925.

UNITED STATES PATENT. o'FFIoe.

JAMES s. PATTERSON, or ABILENE, rnxasnssroivon or onn-ronia'rri rowi mrAm E. PATTERSON. AND

TEXAS. 1

ONE-FOURTH.TO J'. S. PATTERSON, JR., BQ'IHOF ABILENE,

' prim 1mm,

Application filed October 6,1923; Serial No. 666,950.,

To all whom it may concern: 1

Be it known that I, J AMES S. PATTERSON, a citizen of the United States, residing at Abilene, in the county of Taylor and State ofTeXas, have invented certain new and useful Improvementsin Fan Motors, of which the following is a specification.

This invention relates to weight operated fan motors, andhas for one of itsobjects to improve the construction and increase the efficiency and utility of devices of this character.

WVith this and other objects in view the invention consists in certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims, and in the drawings illustrative of the preferred embodiment of the invention Figure 1 is a side elevation of the improved device.

Figure 2 is a transverse section enlarged on the line 22 of Figure 1 looking in the direction of the arrow.

Fig. 3 is a longitudinal sectional elevation.

Fig. 4 is a plan view with the upper portion of the enclosing casing removed.

Figure 5 is a sectional detail of the winding drum and the drive pinion thereon, illustrating the winding mechanism.

Fig. 6 is a tranverse section on the line 66 of Fig. 5.

The improved fan operative mechanism is enclosed in a divided casing formed of a lower or base portion 10 and upper or cover portion 11 preferably united by flanges as shown at 12.

Formed in the opposite sides of the base portion of the casing are a plurality of half bearings 13 in each pair of which shafts are supported either stationary or rotative as may be preferred. One of the shafts 14 is the main drive shaft while the remaining shafts 15, 16 and 17, are arranged to support the transmission gearing. The cover portion 11 is formed with opposing half bearings, represented at 19, to bear over the terminals of all the shafts. Mounted to rotate with the drive shaft 14 is a winding drum 20, on which a relatively long cable 21 is wound and with a relatively heavy weight 22, at the free end of the cable below the easing 10-11.

Mounted loosely on the drive shaft 14 is a gearpinion 23, mounted'loosely onthe shaft 151s alarger gear 24, in constant engagement with the pinion 23. Mounted loosely on the shaft 16 is a pinion25 in constant engagement with the larger gear 24. Mounted loosely upon the shaft 16 and attached to or formed integral 'withthe pinion 25 is a gear 26.

Mountdloosely n he shaft 17 is a pm 10111 27 iconstantengagement with the gear 26. it 1 H i o Mounted looselyon the shaft 18 and attached to or integral with the pinion 27' is a relatively large gear 28.

Mounted loosely onthe shaft 16 is a pinion 29 constantly engaged by the larger gear 28.

Mounted loosely on the shaft 16 and attached to or integral with the pinion 29, is a relatively large gear 30.

Mounted loosely upon theshaft 15 is a pinion 31 in constant engagement with the gear 30.

Mounted loosely on the shaft 15 and attached to or integral with the pinion 31 is a relatively large gear 32.

Mounted for rotation in one of the bearings of the drive shaft 14 is the hub or sleeve portion 33 of a fan 34, the hub having a socket to receive and support one end of the shaft 14. Mounted upon or attached to the hub 33 of the fan, is a pinion 35, constantly engaged by the gear 32.

Each of the shafts is shown provided with suitable stop collars to retain the shafts in position in the casing.

For the purpose of illustration four of the transmission shafts are shown, but a greater or lesser number may be employed if required.

By this arrangement, the force of the weight is utilized to transmit motion to the fan at high speed from relatively slow motion of the drum shaft.

Formed upon or attached to the drum 20 is a ratchet 36 and extending from the hub of the pinion 23 is an arm 37 carrying a pawl 38 to engage the teeth of the ratchet. The shaft 14 is extended at one end and formed square as at 39 to receive a winding key, not shown. By this arrangement the cable may be wound upon the drum when necessary.

The improved device is simple in conend in one of said bearings, a hub element bearing a gear pinion and journalled in the other of said bearings, said hub element 1 formed with aseat to receivethe other end of said shaft, a winding drum mounted to rotate with said shaft and carrying a ratchet wheel, a gear pinion rotative uponsaid' shaft and carryinga pawl engaged by said ratchet,

a cable having a Weight attached thereto at one .end andv connected I at the other end to said drum and adapted tov be wound thereon, anda train of gears between the pinion of said shaftand thepinion of said hub element, whereby said drum is rotative undenthe influence of said weight and the motion of the drum communicated to the hub.

2. A device of the class described, comprising a support having a plurality of transversely aligned pairs of bearings, a shaft journalled at one end in one of said aligned bearings, a hub element bearing a gear pinion and journalled Y in the other of said aligned bearings, said hu'b element formed with a seat to receive the other end of "said shaft, a winding drum mounted to rotate with said shaft and carrying a ratchet wheel, agear pinion rotative upon said shaft and carrying a pawl engaged-by saidratchet, a cable having a weight attached thereto at one end and attached at the other end to said drum and adapted to be woundthereon, and a train of gears carried respectively by the remaining aligned shafts and operating between the pinion of said shaft and the pinion of'said hub element, whereby said drum is rotative under the influenceof said weight and the motion ofthe drum communicated to the hub. I

In testimony whereof, I affix my signature hereto.

' JAMES s. PATTERSON; 

